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Our backups of VMs seem to complete successfully, the snapshots are created and deleted completed according to the NBU logs, but our monitoring tool indicates that some snapshot data is being left behind.
Description: Finds VMSN files on the datastore that aren't listed in a Virtual Machine's snapshots
Time Executed: Tue, 11 Nov 2014 20:25:13
Current Overall Alert State: ACTIVE
Recommendation: It is possible that when some of your snapshots were removed, all associated snapshot file were not cleaned up correctly. There may be opportunities to reclaim storage by removing these files.
Alert Active for:
1. Datastore: datastore and vmdk info.
The snapshots are not being deleted at all on the host.